How Many ml of E-Liquid Does One Coil Use?

Overview

How many ml per coil you get has no single answer: it depends on the coil design, the e-liquid and how you vape. A few manufacturers publish a figure for their own coils, and we show one example below, but the most useful number is the one you measure yourself.

We sell coils and pods to adults aged 21+ in the UAE, and customers often ask us for a figure. This guide gives you a method instead of a guess.

• How many ml per coil: the short answer
• What manufacturers publish
• What changes the number
• How to track your own number
• Turning ml into cost per ml
• Signs a coil needs replacing
• Where to go next

How many ml per coil: the short answer

There is no universal figure. Coil makers state that actual life varies with usage frequency, e-liquid type and vaping habits, and that is the honest starting point for any estimate.

Some makers do publish a rough number for a specific coil. Geekvape, for example, lists a stated life in millilitres for two of its B Coil types, which we set out in the table in the next section. Those numbers belong to those coils only. They tell you nothing reliable about a different brand, a different resistance or a pod system.

Because of that, we do not quote a blanket “one coil equals this many ml” claim. If you want to know how many ml per coil your own setup gives, you measure it: note how much liquid you put through a coil between fitting it and replacing it, as described further down. Two or three coils of data will give you a figure that reflects your power setting, your liquid and your puff length, which a generic number cannot.

For the time-based view, see our guide on how long vape coils last.

What manufacturers publish

Geekvape’s own FAQ for the B Coil (Boost Version) states a lifespan in millilitres for two coil types and adds that the actual lifespan varies with usage frequency, e-liquid type (VG/PG ratio) and vaping habits. You can read it on the Geekvape B Coil FAQ page.

The table below repeats those stated figures and adds simple arithmetic. The cost column uses an example coil price of AED 10, chosen only to show the calculation. It is not a price from our store.

Coil (per Geekvape FAQ)	Stated life	Cost per ml at an example AED 10 coil
B Coil (Boost Version)	About 50 to 60 ml	About AED 0.17 to 0.20
B MTL Coil	About 20 to 30 ml	About AED 0.33 to 0.50

Can I use these figures for other brands’ coils?

No. The figures describe Geekvape’s B Coil types as the maker states them. Other coils have their own designs, and their makers may publish different numbers or none. Check the manual or support page for your own device.

What changes the number

Geekvape names three things that move a coil’s real life away from its stated figure: how often you vape, the type of e-liquid (its VG/PG ratio) and your vaping habits. The same FAQ also says that very high power overheats the coil and burns the cotton, and that using a coil outside its recommended resistance range accelerates wear.

In practical terms, that gives you a short list of things to keep steady when you compare two coils:

• Power setting: stay inside the range your device and coil are rated for.
• Liquid: Geekvape notes that thicker, high-VG liquids wick more slowly and may cause faster build-up on the coil. Read more in our VG and PG ratio guide.
• Puff pattern: Geekvape says chain vaping gives the cotton too little time to reabsorb liquid, which leads to dry hits.
• Resistance: match the coil to the range your device supports. Our coil resistance guide explains the numbers.

Change one factor at a time if you are testing, otherwise you will not know which one moved your result.

How to track your own number

A simple log is enough. You need the liquid volume when you fit a new coil, the volume when you replace it, and a note of any refills in between.

1. Fit the new coil and fill the tank or pod. Write down the date.
2. Each time you top up, add the amount you put in to a running total.
3. When you replace the coil, stop the count. That total is your ml for that coil.
4. Repeat for two or three coils and take the average.

How do I measure how much liquid I used?

Use the volume of the bottle you pour from. Weigh or mark the bottle before and after a coil’s life, or count the fills against the tank’s printed capacity. Count the liquid left in the tank when you replace the coil and subtract it, so you only record what you actually used.

Keep the same liquid and power setting while you log, and your numbers will be comparable between coils.

Turning ml into cost per ml

Once you know how many ml per coil you get, cost per ml is the coil price divided by those ml. It lets you compare a cheap coil that wears out quickly with a dearer one that lasts longer, using your own numbers instead of the pack label.

Worked example, with round figures chosen only to show the sum: a coil costing AED 10 that gives you 40 ml works out at AED 0.25 per ml (10 divided by 40). A coil costing AED 14 that gives you 70 ml works out at AED 0.20 per ml (14 divided by 70). The dearer coil is cheaper per ml in that example, even though it costs more to buy.

Does a bigger ml number always mean a better coil?

Not on its own. A coil that lasts longer but tastes flat early may not suit you, so judge it on cost per ml and on flavour. Prices on our site are shown in AED, so run the sum with the price you actually pay, including VAT if you want the true total.

Signs a coil needs replacing

Geekvape lists a burnt taste or a decline in flavour as the cue to replace a coil. A retailer help page we checked, from SmokTek Vapor Store, adds a longer list of signs:

• A persistent burnt or harsh taste even with a full pod
• Noticeably reduced vapour
• Gurgling or leaking that was not there before
• Dark brown or black discolouration visible through the pod window
• Muted flavour that does not improve after a fresh fill

When should I replace a coil before it reaches its stated number?

Whenever the taste tells you to. A stated ml figure is a guide for that coil under the maker’s conditions, not a countdown. If you notice a burnt taste, replace the coil and record the ml used so far. That entry is useful data for your next coil.

Our guide on why a vape tastes burnt covers the common causes.

Where to go next

Start your log with the next coil you fit, and compare two or three results before you decide what a coil is worth to you. The device maker’s manual remains the reference for power, resistance and priming guidance for your exact coil.

When you are ready to buy, browse our vape coils and pods and coils categories. Prices are in AED excluding VAT and stock changes, so check the product page before you order.

If you are comparing refillable pod systems, our pod systems category lists them. Our products are for adults aged 21+ only.